Table 2. The Raman shifts and peak assignments of Nile blue A.
Raman shifts (cm−1)
|
||||
---|---|---|---|---|
CRSC | A. indica Ag NPs | Pectin Ag NPs | Reported Raman peaks for NBA (cm−1) | Peak assignments |
592 | 592 | 594 | 590 | CCN; CNC |
663 | 662 | 666 | In plane CCC; NCC | |
885 | 886 | 886 | ||
1132 | 1132 | 1132 | 1141 | CH bending |
1352 | 1352 | 1352 | 1351 | Ring stretching |
1434 | 1432 | 1433 | ||
1490 | 1490 | 1490 | 1492 | |
1642 | 1642 | 1640 | 1640 |